SAO INDEX SPRUCE 539 
Sao Paulo, ii. 2 
Sapindus cerasiiitis, i. 162 
Sapotaceous fruits, ii. 316 
Sara-yacu river, ii. 119; gold in, ii. 
119; village, ii. 120 
Sarcostemma, ii. 339 
Saurauja, ii. 282 
ScALiA, ii, 100 
Schiekia orinocensis^ i. 467 
SCHLOTHEIMIA, ii. 292 
SCHNELLA, i. 38 
Schiiella spleiidens, i. 28 
SciRPUS, ii. 340 
Scirpus valtdus, ii. 219 
SCLERIA, ii. 277 ; sp., i. 360 
SCLEROLOBIUM, ii. 397 
Sclerolobitim odoratissimum^ ii. 398 
Sclerolobium panictilatum, ii. 398 
Sclei'olobhwi tinctorhim^ ii. 398 
Scoparia dulcis, ii. 340 
Scorpions and centipedes, ii. 70 
Sealing-wax tree, i. 5 
Seasons, i. 2 
Securidaca, L 43 
Selaginella, i. 454, 468, ii. 25, 
290 ; climbing, ii. 205 
Selaginella Parkeri, i. 47 
Semann, Dr., letter to, i. 224 
Sendtner/E, ii. 293 
Senecios, ii. 250 
Serjania, i. 38, ii. 4, 281 
Serjanias, i. 228 
Serpa, i. 195 
Serra do Gama, collection at, i. 297 ; 
expedition to, i. 303, 312 
Serras d' Almeirim, i. 60 
Setaria, i. 441 
Shiruri, a deserted village, ii. 106 
Shuna, the crossing of, ii. 148 
SiAPA river, i. 392 
Sida gloinerata, ii, 281, 285 
Sida Pichinchejisis, ii. 264 
Silene, ii. 181 
Silk-cotton tree (fig.), i. 186 
Silk-cotton trees, i. 18 
Simaruba versicolor, i. 72 
SiPANEA, i. 433 
Sipanea acinifolia, i. 469 
Sipanea glomerata, i. 469 
Sipanea livinopkila, i. 154 
Sipanea ocynioides, i. 71 
Sipanea radicans, i. 468 
Sipanea rnpicola, i. 433 
SiPHOCAMPYLi, ii, 287 
SiPHONiA, i, 37 
Siphonia bi'evifolia, i. 507 
Siphonia elastic a, i. 508 
Siphonia liitea, i. 45 1> 507 
Siphonia Spruceana, i. 153 
Sisymbrium, ii. 281 
Slater, Mr. M. B., letter to, i. 255 
Smilax, i. 29, 467, ii, 279 
Smith, letters to Mr. John, i. 225, 
264 
Snake-bite, fatal, seen by Spruce, 
i. 367 ; effects of, ii. 62-5 
Snakes, ii. 274 ; and swine, i. 340 ; 
venomous, ii. 66 
Snuff, native, ii. 426-30 
Sobralia dichotoma, i. 360 
Social customs in Ecuador, ii. 252 
Solana, ii. 289 
Solano, old village on Casiquiari, 
i. 390 
Solanum, ii. 406 
Solanum Jamaicejise, i. 303 
SolannDi nigrtini, ii. 340 
SOLANUMS at Para, i. 5 
Solimoes, vegetation of, ii. 3 
SoNCHUS, ii. 340 
Sounds of life on Amazon, i. 168 ; 
strange, in forest, i. 423 ; mysteri- 
ous, ii. 438-44 
Southey, Hist, of Brazil, ii. 462 
Spartiuni juncettm, ii. 163 
Species of plants in Amazonia, ii. 
208 
Specimens collected during voyage 
up the Rio Negro, i. 265 
Sphagnoecetis, i. 383 
Spiders, bites of, ii. 67 
Spinning, cotton-, ii. 82 
Spondias, edible fruit, ii. 316 
Sponia, ii. 279 
Spruce, at Para, i. 1-7, 50-53 ; at 
Caripi, i. 7-15 ; at Tauau, i. 
15-50; at Santarem, i. 62-76, 
108-165 ; at Obydos, i. 81-84 ; 
in Trombetas river, i. 85-107 ; 
lost in forest, i. 92, 96 ; and King, 
accident to, i. 120; at Manaos, i. 
203-58, 495-504 ; at Sao Gabriel, 
i. 289-316; up the Uaupes river, 
i. 317-42; letter to A. R, W. 
from Uaupes, i, 319 ; letter to 
A. R. W. from San Carlos, i. 329 ; 
hard w^ork on Uaupes, i. 336 ; 
besieged in San Carlos, i. 348-52 ; 
